Camera optical lens

ABSTRACT

The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens having a positive refractive power; a second lens having a positive refractive power; a third lens having a positive refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 5.00≤f2/f3≤8.00; and 1.00≤d3/d5≤5.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.

TECHNICAL FIELD

The present disclosure relates to the field of optical lens, and moreparticularly, to a camera optical lens suitable for handheld terminaldevices, such as smart phones or digital cameras, and imaging devices,such as monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but in general thephotosensitive devices of camera lens are nothing more than ChargeCoupled Device (CCD) or Complementary Metal-Oxide Semiconductor Sensor(CMOS sensor), and as the progress of the semiconductor manufacturingtechnology makes the pixel size of the photosensitive devices becomesmaller, plus the current development trend of electronic productstowards better functions and thinner and smaller dimensions, miniaturecamera lenses with good imaging quality therefore have become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. Also, with the development oftechnology and the increase of the diverse demands of users, and as thepixel area of photosensitive devices is becoming smaller and smaller andthe requirement of the system on the imaging quality is improvingconstantly, the five-piece, six-piece and seven-piece lens structuresgradually appear in lens designs. There is an urgent need forultra-thin, wide-angle camera lenses with good optical characteristicsand fully corrected chromatic aberration.

BRIEF DESCRIPTION OF DRAWINGS

Many aspects of the exemplary embodiment can be better understood withreference to the following drawings. The components in the drawings arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure. Moreover,in the drawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DESCRIPTION OF EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

Referring to FIG. 1, the present disclosure provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 according to Embodiment1 of the present disclosure. The camera optical lens 10 includes 6lenses. Specifically, the camera optical lens 10 includes, from anobject side to an image side, an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixthlens L6. An optical element such as an optical filter GF can be arrangedbetween the sixth lens L6 and an image plane Si.

The first lens L1 is made of a plastic material, the second lens L2 ismade of a plastic material, the third lens L3 is made of a plasticmaterial, the fourth lens L4 is made of a plastic material, the fifthlens L5 is made of a plastic material, and the sixth lens L6 is made ofa plastic material.

The first lens L1 has a positive refractive power, the second lens L2has a positive refractive power, and the third lens L3 has a positiverefractive power.

Here, a focal length of the second lens L2 is defined as f2, and a focallength of the third lens L3 is defined as f3. The camera optical lens 10should satisfy a condition of 5.00≤f2/f3≤8.00. The appropriatedistribution of the refractive power leads to a better imaging qualityand a lower sensitivity. Preferably, 5.01≤f2/f3≤7.90.

An on-axis thickness of the second lens L2 is defined as d3, and anon-axis thickness of the third lens L3 is defined as d5. The cameraoptical lens 10 further satisfies a condition of 1.00≤d3/d5≤5.00, whichspecifies a ratio of the on-axis thickness of the second lens L2 to theon-axis thickness of the third lens L3. This facilitates development ofwide-angle lenses. Preferably, 1.01≤d3/d5≤3.40.

A total optical length from an object side surface of the first lens L1to an image plane of the camera optical lens 10 along an optic axis isdefined as TTL. When the focal length of the second lens, the focallength of the third lens, the on-axis thickness of the second lens andthe on-axis thickness of the third lens satisfy the above conditions,the camera optical lens will have the advantage of high performance andsatisfy the design requirement of a low TTL.

In this embodiment, the object side surface of the first lens L1 isconvex in a paraxial region, an image side surface of the first lens L1is concave in the paraxial region, and the first lens L2 has a positiverefractive power.

Here, a focal length of the camera optical lens 10 is defined as f, anda focal length of the first lens L1 is defined as f1. The camera opticallens 10 should satisfy a condition of 0.44≤f1/f≤1.38, which specifies aratio of the focal length f1 of the first lens L1 and the focal length fof the camera optical lens 10. If the lower limit of the specified valueis exceeded, although it would facilitate development of ultra-thinlenses, the positive refractive power of the first lens L1 will be toostrong, and thus it is difficult to correct the problem like anaberration and it is also unfavorable for development of wide-anglelenses. On the contrary, if the upper limit of the specified value isexceeded, the positive refractive power of the first lens L1 wouldbecome too weak, and it is then difficult to develop ultra-thin lenses.Preferably, 0.70≤f1/f≤1.10.

A curvature radius of the object side surface of the first lens L1 isdefined as R1, and a curvature radius of an image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 furthersatisfies a condition of 2.87≤(R1+R2)/(R1−R2)≤−0.69. This can reasonablycontrol a shape of the first lens L1 in such a manner that the firstlens L1 can effectively correct a spherical aberration of the cameraoptical lens. Preferably, −1.80≤(R1+R2)/(R1−R2)≤−0.86.

An on-axis thickness of the first lens L1 is defined as d1. The cameraoptical lens 10 further satisfies a condition of 0.05≤d1/TTL≤0.17. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.08≤d1/TTL≤0.13.

In this embodiment, an object side surface of the second lens L2 isconcave in the paraxial region, and an object side surface of the secondlens L2 is convex in the paraxial region.

The focal length of the camera optical lens 10 is f, and a focal lengthof the second lens L2 is f2. The camera optical lens 10 furthersatisfies a condition of 2.27≤f2/f≤10.18. By controlling the positiverefractive power of the second lens L2 within the reasonable range,correction of the aberration of the optical system can be facilitated.Preferably, 3.62≤f2/f≤8.14.

A curvature radius of the object side surface of the second lens L2 isdefined as R3, and a curvature radius of the image side surface of thesecond lens L2 is defined as R4. The camera optical lens 10 furthersatisfies a condition of 0.67≤(R3+R4)/(R3−R4)≤3.53. This can reasonablycontrol a shape of the second lens L2. Out of this range, a developmenttowards ultra-thin and wide-angle lenses would make it difficult tocorrect the problem of the aberration. Preferably,1.07≤(R3+R4)/(R3−R4)≤2.82.

An on-axis thickness of the second lens L2 is defined as d3. The cameraoptical lens 10 further satisfies a condition of 0.04≤d3/TTL≤0.18. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.07≤d3/TTL≤0.15.

In this embodiment, an object side surface of the third lens L3 isconcave in the paraxial region, and an image side surface of the thirdlens L3 is convex in the paraxial region.

The focal length of the camera optical lens 10 is f, and a focal lengthof the third lens L3 is f3. The camera optical lens 10 further satisfiesa condition of 0.43≤f3/f≤1.52. By controlling the positive refractivepower of the third lens L3 within the reasonable range, correction ofthe aberration of the optical system can be facilitated. Preferably,0.70≤f3/f≤1.21.

A curvature radius of the object side surface of the third lens L3 isdefined as R5, and a curvature radius of the image side surface of thethird lens L3 is defined as R6. The camera optical lens 10 furthersatisfies a condition of 1.27≤(R5+R6)/(R5−R6)≤4.41, which specifies ashape of the third lens L3. Out of this range, a development towardsultra-thin and wide-angle lenses would make it difficult to correct theproblem of the aberration. Preferably, 2.04≤(R5+R6)/(R5−R6)≤3.53.

An on-axis thickness of the third lens L3 is defined as d5. The cameraoptical lens 10 further satisfies a condition of 0.03≤d5/TTL≤0.12. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.05≤d5/TTL≤0.10.

In this embodiment, an object side surface of the fourth lens L4 isconcave in the paraxial region, an image side surface of the fourth lensL4 is concave in the paraxial region, and the fourth lens L4 has anegative refractive power.

The focal length of the camera optical lens 10 is f, and a focal lengthof the fourth lens L4 is f4. The camera optical lens 10 furthersatisfies a condition of −1.12≤f4/f≤−0.35. The appropriate distributionof the refractive power leads to a better imaging quality and a lowersensitivity. Preferably, −0.70≤f4/f≤−0.44.

A curvature radius of the object side surface of the fourth lens L4 isdefined as R7, and a curvature radius of the image side surface of thefourth lens L4 is defined as R8. The camera optical lens 10 furthersatisfies a condition of −1.69≤(R7+R8)/(R7−R8)≤−0.54, which specifies ashape of the fourth lens L4. Out of this range, a development towardsultra-thin and wide-angle lenses would make it difficult to correct theproblem like an off-axis aberration. Preferably,−1.06≤(R7+R8)/(R7−R8)≤−0.67.

An on-axis thickness of the fourth lens L4 is defined as d7. The cameraoptical lens 10 further satisfies a condition of 0.03≤d7/TTL≤0.11. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.05≤d7/TTL≤0.09.

In this embodiment, an object side surface of the fifth lens L5 isconvex in the paraxial region, an image side surface of the fifth lensL5 is convex in the paraxial region, and the fifth lens L5 has apositive refractive power.

The focal length of the camera optical lens 10 is f, and a focal lengthof the fifth lens L5 is f5. The camera optical lens 10 further satisfiesa condition of 0.43≤f5/f≤1.37. This can effectively make a light angleof the camera lens gentle and reduce the tolerance sensitivity.Preferably, 0.68≤f5/f≤1.10.

A curvature radius of the object side surface of the fifth lens L5 isdefined as R9, and a curvature radius of the image side surface of thefifth lens L5 is defined as R10. The camera optical lens 10 furthersatisfies a condition of 0.13≤(R9+R10)/(R9−R10)≤0.51, which specifies ashape of the fifth lens L5. Out of this range, a development towardsultra-thin and wide-angle lenses would make it difficult to correct theproblem like an off-axis aberration. Preferably,0.20≤(R9+R10)/(R9−R10)≤0.41.

An on-axis thickness of the fifth lens L5 is defined as d9. The cameraoptical lens 10 further satisfies a condition of 0.08≤d9/TTL≤0.26. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.13≤d9/TTL≤0.20.

In this embodiment, an object side surface of the sixth lens L6 isconvex in the paraxial region, an image side surface of the sixth lensL6 is concave in the paraxial region, and the sixth lens L6 has anegative refractive power.

The focal length of the camera optical lens 10 is f, and a focal lengthof the sixth lens L6 is f6. The camera optical lens 10 further satisfiesa condition of −1.57≤f6/f≤−0.48. The appropriate distribution of therefractive power leads to a better imaging quality and a lowersensitivity. Preferably, −0.98≤f6/f≤−0.60.

A curvature radius of the object side surface of the sixth lens L6 isdefined as R11, and a curvature radius of the image side surface of thesixth lens L6 is defined as R12. The camera optical lens 10 furthersatisfies a condition of 0.61≤(R11+R12)/(R11−R12)≤1.96, which specifiesa shape of the sixth lens L6. Out of this range, a development towardsultra-thin and wide-angle lenses would make it difficult to correct theproblem like an off-axis aberration. Preferably,0.97≤(R11+R12)/(R11−R12)≤1.57.

A thickness on-axis of the sixth lens L6 is defined as d11. The cameraoptical lens 10 further satisfies a condition of 0.06≤d11/TTL≤0.20. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.10≤d11/TTL≤0.16.

In this embodiment, the focal length of the camera optical lens 10 is f,and a combined focal length of the first lens L1 and the second lens L2is f12. The camera optical lens 10 further satisfies a condition of0.40≤f12/f≤1.23. This can eliminate the aberration and distortion of thecamera optical lens while suppressing a back focal length of the cameraoptical lens, thereby maintaining miniaturization of the camera lenssystem. Preferably, 0.64≤f12/f≤0.99.

In this embodiment, the total optical length TTL of the camera opticallens 10 is smaller than or equal to 4.91 mm, which is beneficial forachieving ultra-thin lenses. Preferably, the total optical length TTL ofthe camera optical lens 10 is smaller than or equal to 4.69 mm.

In this embodiment, the camera optical lens 10 has a large F number,which is smaller than or equal to 2.89. The camera optical lens 10 has abetter imaging performance. Preferably, the F number of the cameraoptical lens 10 is smaller than or equal to 2.83.

With such design, the total optical length TTL of the camera opticallens 10 can be made as short as possible, and thus the miniaturizationcharacteristics can be maintained.

In the following, examples will be used to describe the camera opticallens 10 of the present disclosure. The symbols recorded in each examplewill be described as follows. The focal length, on-axis distance,curvature radius, on-axis thickness, inflexion point position, andarrest point position are all in units of mm.

TTL: Optical length (the total optical length from the object sidesurface of the first lens to the image plane of the camera optical lensalong the optic axis) in mm.

Preferably, inflexion points and/or arrest points can be arranged on theobject side surface and/or image side surface of the lens, so as tosatisfy the demand for the high quality imaging. The description belowcan be referred to for specific implementations.

The design information of the camera optical lens 10 in Embodiment 1 ofthe present disclosure is shown in Tables 1 and 2.

TABLE 1 R d nd vd S1 ∞ d0= −0.100 R1 1.474 d1= 0.478 nd1 1.5439 v1 55.95R2 9.305 d2= 0.107 R3 −50.468 d3= 0.352 nd2 1.5439 v2 55.95 R4 −7.267d4= 0.220 R5 −2.096 d5= 0.345 nd3 1.5672 v3 37.49 R6 −1.013 d6= 0.075 R7−1.355 d7= 0.323 nd4 1.6713 v4 19.24 R8 15.111 d8= 0.138 R9 5.838 d9=0.696 nd5 1.6713 v5 19.24 R10 −3.143 d10= 0.174 R11 9.920 d11= 0.567 nd61.5843 v6 28.25 R12 1.329 d12= 0.300 R13 ∞ d13= 0.210 ndg 1.5168 vg64.17 R14 ∞ d14= 0.337 In the table, meanings of various symbols will bedescribed as follows. S1: aperture; R: curvature radius of an opticalsurface, a central curvature radius for a lens; R1: curvature radius ofthe object side surface of the first lens L1; R2: curvature radius ofthe image side surface of the first lens L1; R3: curvature radius of theobject side surface of the second lens L2; R4: curvature radius of theimage side surface of the second lens L2; R5: curvature radius of theobject side surface of the third lens L3; R6: curvature radius of theimage side surface of the third lens L3; R7: curvature radius of theobject side surface of the fourth lens L4; R8: curvature radius of theimage side surface of the fourth lens L4; R9: curvature radius of theobject side surface of the fifth lens L5; R10: curvature radius of theimage side surface of the fifth lens L5; R11: curvature radius of theobject side surface of the sixth lens L6; R12: curvature radius of theimage side surface of the sixth lens L6; R13: curvature radius of anobject side surface of the optical filter GF; R14: curvature radius ofan image side surface of the optical filter GF; d: on-axis thickness ofa lens and an on-axis distance between lenses; d0: on-axis distance fromthe aperture S1 to the object side surface of the first lens L1; d1:on-axis thickness of the first lens L1; d2: on-axis distance from theimage side surface of the first lens L1 to the object side surface ofthe second lens L2; d3: on-axis thickness of the second lens L2; d4:on-axis distance from the image side surface of the second lens L2 tothe object side surface of the third lens L3; d5: on-axis thickness ofthe third lens L3; d6: on-axis distance from the image side surface ofthe third lens L3 to the object side surface of the fourth lens L4; d7:on-axis thickness of the fourth lens L4; d8: on-axis distance from theimage side surface of the fourth lens L4 to the object side surface ofthe fifth lens L5; d9: on-axis thickness of the fifth lens L5; d10:on-axis distance from the image side surface of the fifth lens L5 to theobject side surface of the sixth lens L6; d11: on-axis thickness of thesixth lens L6; d12: on-axis distance from the image side surface of thesixth lens L6 to the object side surface of the optical filter GF ; d13:on-axis thickness of the optical filter GF; d14: on-axis distance fromthe image side surface of the optical filter GF to the image plane; nd:refractive index of d line; nd1: refractive index of d line of the firstlens L1; nd2: refractive index of d line of the second lens L2; nd3:refractive index of d line of the third lens L3; nd4: refractive indexof d line of the fourth lens L4; nd5: refractive index of d line of thefifth lens L5; nd6: refractive index of d line of the sixth lens L6;ndg: refractive index of d line of the optical filter GF; vd: abbenumber; v1: abbe number of the first lens Ll; v2: abbe number of thesecond lens L2; v3: abbe number of the third lens L3; v4: abbe number ofthe fourth lens L4; v5: abbe number of the fifth lens L5; v6: abbenumber of the sixth lens L6; vg: abbe number of the optical filter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inEmbodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10R1 7.6185E−01 −6.2548E−02 1.2611E−01 −1.1505E+00 1.9970E+00 R20.0000E+00 −1.2300E−01 6.8514E−02 −1.6500E+00 3.5119E+00 R3 0.0000E+00−1.1394E−01 2.3469E−02 −1.7500E+00 3.6946E+00 R4 0.0000E+00 −5.8870E−02−2.2607E−01   3.2176E−01 −1.0270E+00  R5 1.3117E+00 −1.3231E−011.1934E−01 −2.3485E−01 −2.4178E−02  R6 −3.5007E+00  −1.4132E−01−8.2482E−03   3.0114E−02 4.6384E−02 R7 −5.6061E+00  −1.3648E−016.7065E−02 −9.9846E−01 1.6734E+00 R8 0.0000E+00 −1.3213E−01 3.9417E−03−4.6518E−01 1.0282E+00 R9 0.0000E+00  4.3790E−02 −3.1976E−01  2.8421E−01 −1.3369E−01  R10 −5.4696E+00   2.0352E−01 −4.1875E−01  3.9926E−01 −2.0662E−01  R11 1.3088E+01 −1.3541E−01 −2.3816E−01  3.4815E−01 −1.8977E−01  R12 −2.8868E+00  −2.4381E−01 1.6720E−01−8.3961E−02 3.0831E−02 Aspherical surface coefficients A12 A14 A16 A18A20 R1 −4.5942E−01 6.2028E−01 −3.1551E+00  0.0000E+00 0.0000E+00 R2 7.9496E−02 1.2094E+00 7.3228E−04 0.0000E+00 0.0000E+00 R3  1.4867E+00−5.6133E−01  1.6763E−03 0.0000E+00 0.0000E+00 R4 −7.1316E−01 2.8682E−013.8316E+00 0.0000E+00 0.0000E+00 R5 −7.7552E−01 −1.6149E+00 −1.0726E+00  0.0000E+00 0.0000E+00 R6 −2.7887E−01 −2.3302E−01 2.1151E−01 0.0000E+00 0.0000E+00 R7 −2.4847E+00 2.3428E+00 −6.2983E−01 0.0000E+00 0.0000E+00 R8 −1.2482E+00 7.7052E−01 −1.6708E−01  0.0000E+000.0000E+00 R9 −4.3710E−02 4.7230E−02 −5.1120E−03  0.0000E+00 0.0000E+00R10  5.9414E−02 −8.8823E−03  5.3465E−04 0.0000E+00 0.0000E+00 R11 5.2215E−02 −6.4947E−03  −6.2400E−05 1.0056E−04 −7.4520E−06  R12−8.0190E−03 1.3504E−03 −1.2958E−04 5.4248E−06 −1.3909E−08 

Here, K is a conic coefficient, and A4, A6, A8, A10, A12, A14, A16, A18and A20 are aspheric surface coefficients.

IH: Image Height

y=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2) ]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰  (1)

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above formula (1). However, the presentdisclosure is not limited to the aspherical polynomials form shown inthe formula (1).

Table 3 and Table 4 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 10 according toEmbodiment 1 of the present disclosure. P1R1 and P1R2 represent theobject side surface and the image side surface of the first lens L1,P2R1 and P2R2 represent the object side surface and the image sidesurface of the second lens L2, P3R1 and P3R2 represent the object sidesurface and the image side surface of the third lens L3, P4R1 and P4R2represent the object side surface and the image side surface of thefourth lens L4, P5R1 and P5R2 represent the object side surface and theimage side surface of the fifth lens L5, and P6R1 and P6R2 represent theobject side surface and the image side surface of the sixth lens L6. Thedata in the column named “inflexion point position” refers to verticaldistances from inflexion points arranged on each lens surface to theoptic axis of the camera optical lens 10. The data in the column named“arrest point position” refers to vertical distances from arrest pointsarranged on each lens surface to the optic axis of the camera opticallens 10.

TABLE 3 Number of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 position 3 P1R1 0 P1R2 2 0.265 0.545P2R1 1 0.545 P2R2 0 P3R1 0 P3R2 0 P4R1 1 0.855 P4R2 2 0.205 0.995 P5R1 20.455 1.185 P5R2 2 1.605 1.655 P6R1 3 0.235 1.145 2.035 P6R2 2 0.5352.365

TABLE 4 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 P1R2 2 0.415 0.595 P2R1 1 0.625 P2R2 0 P3R1 0 P3R2 0P4R1 0 P4R2 1 0.345 P5R1 1 0.685 P5R2 0 P6R1 1 0.385 P6R2 1 1.245

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 486 nm, 588 nm and 656 nm afterpassing the camera optical lens 10 according to Embodiment 1. FIG. 4illustrates a field curvature and a distortion of light with awavelength of 588 nm after passing the camera optical lens 10 accordingto Embodiment 1, in which a field curvature S is a field curvature in asagittal direction and T is a field curvature in a meridian direction.

Table 13 shows various values of Embodiments 1, 2 and 3 and valuescorresponding to parameters which are specified in the above conditions.

As shown in Table 13, Embodiment 1 satisfies the above conditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 1.227 mm. The image height of 1.0H is 3.2376 mm. The FOV (fieldof view) is 85.76°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 2

Embodiment 2 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween will be described in the following.

Table 5 and Table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R d nd vd S1 ∞ d0= −0.100 R1 1.663 d1= 0.458 nd1 1.5439 v1 55.95R2 120.555 d2= 0.091 R3 −19.065 d3= 0.540 nd2 1.5439 v2 55.95 R4 −7.688d4= 0.213 R5 −2.289 d5= 0.300 nd3 1.5672 v3 37.49 R6 −1.128 d6= 0.096 R7−1.478 d7= 0.282 nd4 1.6713 v4 19.24 R8 14.043 d8= 0.156 R9 5.237 d9=0.739 nd5 1.6713 v5 19.24 R10 −3.109 d10= 0.166 R11 13.483 d11= 0.545nd6 1.5843 v6 28.25 R12 1.314 d12= 0.300 R13 ∞ d13= 0.210 ndg 1.5168 vg64.17 R14 ∞ d14= 0.356

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10R1 1.4633E+00 −8.9644E−02  3.3611E−01 −1.7924E+00  2.8674E+00 R20.0000E+00 −8.3778E−03  2.4890E−01 −1.7276E+00  3.6528E+00 R3 0.0000E+00 3.9467E−02 −3.9707E−02 −5.4604E−01  1.2574E+00 R4 0.0000E+00−3.3991E−02 −3.2870E−01 8.2463E−01 −1.9631E+00  R5 4.8722E−01−1.2918E−01  2.6753E−01 −3.3853E−01  −1.0271E−02  R6 −4.8374E+00 −1.3935E−01  5.6200E−02 1.2948E−01 1.2790E−01 R7 −9.4386E+00 −1.7801E−01  7.1378E−02 −9.8524E−01  1.7487E+00 R8 0.0000E+00−1.3615E−01 −1.7151E−01 5.2772E−01 −1.4015E+00  R9 0.0000E+00 2.8631E−03 −3.7386E−01 9.4371E−01 −1.5551E+00  R10 −6.2381E+00  1.8698E−01 −3.9805E−01 4.1725E−01 −2.3789E−01  R11 1.5156E+01−1.3022E−01 −2.0982E−01 2.6550E−01 −1.0180E−01  R12 −3.0804E+00 −2.4212E−01  1.7492E−01 −9.7180E−02  3.9587E−02 Aspherical surfacecoefficients A12 A14 A16 A18 A20 R1 −4.6189E−01  6.1530E−01 −3.1637E+00 0.0000E+00 0.0000E+00 R2 8.0025E−02 1.2113E+00 7.3228E−04 0.0000E+000.0000E+00 R3 1.5216E+00 −4.7496E−01  1.6763E−03 0.0000E+00 0.0000E+00R4 −7.1504E−01  2.6482E−01 3.7822E+00 0.0000E+00 0.0000E+00 R5−6.5089E−01  −1.6191E+00  −1.0872E+00  0.0000E+00 0.0000E+00 R6−2.5961E−01  −3.2022E−01  −2.2196E−03  0.0000E+00 0.0000E+00 R7−2.4036E+00  2.3649E+00 −7.7683E−01  0.0000E+00 0.0000E+00 R8 1.8690E+00−1.3113E+00  4.0219E−01 0.0000E+00 0.0000E+00 R9 1.4630E+00 −7.6176E−01 1.6549E−01 0.0000E+00 0.0000E+00 R10 7.4489E−02 −1.2012E−02  7.7778E−040.0000E+00 0.0000E+00 R11 1.4648E−03 1.1035E−02 −3.6764E−03  5.0894E−04−2.6836E−05  R12 −1.0992E−02  1.8546E−03 −1.5795E−04 3.0441E−062.5867E−07

Table 7 and Table 8 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 20 according toEmbodiment 2 of the present disclosure.

TABLE 7 Number of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 0 P1R2 0 P2R1 1 0.455 P2R2 0 P3R1 0 P3R2 0P4R1 1 0.835 P4R2 2 0.205 0.985 P5R1 2 0.455 1.195 P5R2 2 1.575 1.695P6R1 2 0.205 1.155 P6R2 2 0.525 2.355

TABLE 8 Number of arrest points Arrest point position 1 P1R1 0 P1R2 0P2R1 1 0.555 P2R2 0 P3R1 0 P3R2 0 P4R1 0 P4R2 1 0.335 P5R1 1 0.725 P5R20 P6R1 1 0.345 P6R2 1 1.215

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 486 nm, 588 nm and 656 nm afterpassing the camera optical lens 20 according to Embodiment 2. FIG. 8illustrates a field curvature and a distortion of light with awavelength of 588 nm after passing the camera optical lens 20 accordingto Embodiment 2.

As shown in Table 13, Embodiment 2 satisfies the above conditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 1.265 mm. The image height of 1.0H is 3.2376 mm. The FOV (fieldof view) is 83.95°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 3

Embodiment 3 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween will be described in the following.

Table 9 and Table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R d nd vd S1 ∞ d0= −0.100 R1 1.467 d1= 0.491 nd1 1.5439 v1 55.95R2 8.194 d2= 0.136 R3 −35.333 d3= 0.371 nd2 1.5439 v2 55.95 R4 −9.590d4= 0.202 R5 −2.476 d5= 0.360 nd3 1.5672 v3 37.49 R6 −1.080 d6= 0.098 R7−1.364 d7= 0.329 nd4 1.6713 v4 19.24 R8 16.500 d8= 0.142 R9 6.303 d9=0.762 nd5 1.6713 v5 19.24 R10 −3.121 d10= 0.196 R11 10.617 d11= 0.576nd6 1.5843 v6 28.25 R12 1.352 d12= 0.300 R13 ∞ d13= 0.210 ndg 1.5168 vg64.17 R14 ∞ d14= 0.291

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspherical surface coefficients k A4 A6 A8A10 R1 8.2892E−01 −5.8991E−02 1.4675E−01 −9.1017E−01 1.3125E+00 R20.0000E+00 −8.1039E−02 4.8329E−02 −1.1055E+00 1.7232E+00 R3 0.0000E+00−1.0878E−01 4.6971E−02 −1.3853E+00 1.9933E+00 R4 0.0000E+00 −6.3599E−02−1.9989E−01   2.5520E−01 −8.6277E−01  R5 2.8026E+00 −1.1715E−019.7657E−02 −2.0438E−01 −9.3022E−02  R6 −4.2501E+00  −1.5677E−01−2.6782E−02   2.3452E−02 3.7070E−02 R7 −7.0929E+00  −1.6580E−013.5632E−02 −7.0910E−01 1.0835E+00 R8 0.0000E+00 −1.9342E−01 3.9533E−01−1.2588E+00 1.9119E+00 R9 0.0000E+00 −7.0202E−02 1.6312E−01 −5.4833E−017.3899E−01 R10 −5.9385E+00   1.3757E−01 −2.3649E−01   2.0112E−01−9.6446E−02  R11 1.5573E+01 −1.1070E−01 −2.0713E−01   2.7675E−01−1.4731E−01  R12 −2.9401E+00  −2.0222E−01 1.2314E−01 −5.9265E−022.2818E−02 Aspherical surface coefficients A12 A14 A16 A18 A20 R1−2.6861E−01 3.2895E−01 −1.5177E+00  0.0000E+00 0.0000E+00 R2  4.6492E−026.4140E−01 3.5226E−04 0.0000E+00 0.0000E+00 R3  8.6927E−01 −2.9769E−01 8.0634E−04 0.0000E+00 0.0000E+00 R4 −4.1705E−01 1.5211E−01 1.8431E+000.0000E+00 0.0000E+00 R5 −4.5343E−01 −8.5642E−01  −5.1595E−01 0.0000E+00 0.0000E+00 R6 −1.5132E−01 −1.1625E−01  7.3321E−02 0.0000E+000.0000E+00 R7 −1.4466E+00 1.2414E+00 −3.1777E−01  0.0000E+00 0.0000E+00R8 −1.7289E+00 8.5940E−01 −1.6838E−01  0.0000E+00 0.0000E+00 R9−5.8818E−01 2.4354E−01 −3.8691E−02  0.0000E+00 0.0000E+00 R10 2.6164E−02 −3.7163E−03  2.1277E−04 0.0000E+00 0.0000E+00 R11 4.3538E−02 −7.5472E−03  7.3403E−04 −3.3557E−05  3.5127E−07 R12−6.6179E−03 1.3063E−03 −1.6028E−04  1.0862E−05 −3.0717E−07 

Table 11 and table 12 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 30 according toEmbodiment 3 of the present disclosure.

TABLE 11 Number of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 0 P1R2 2 0.315 0.605 P2R1 1 0.625 P2R2 0 P3R10 P3R2 0 P4R1 0 P4R2 2 0.175 1.035 P5R1 2 0.475 1.235 P5R2 0 P6R1 20.245 1.195 P6R2 2 0.565 2.465

TABLE 12 Number of arrest points Arrest point position 1 P1R1 0 P1R2 10.485 P2R1 0 P2R2 0 P3R1 0 P3R2 0 P4R1 0 P4R2 1 0.315 P5R1 1 0.715 P5R20 P6R1 1 0.405 P6R2 1 1.305

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 486 nm, 588 nm and 656 nm afterpassing the camera optical lens 30 according to Embodiment 3. FIG. 12illustrates field curvature and distortion of light with a wavelength of588 nm after passing the camera optical lens 30 according to Embodiment3.

Table 13 in the following lists values corresponding to the respectiveconditions in this embodiment in order to satisfy the above conditions.The camera optical lens according to this embodiment satisfies the aboveconditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 1.277 mm. The image height of 1.0H is 3.2376 mm. The FOV (fieldof view) is 83.89°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

TABLE 13 Parameters and Embodiment Embodiment Embodiment conditions 1 23 f  3.435 3.543 3.549 f1 3.151 3.097 3.203 f2 15.562 23.296 24.078 f33.100 3.584 3.087 f4 −1.837 −1.977 −1.863 f5 3.141 3.013 3.214 f6 −2.692−2.534 −2.714  f12 2.727 2.838 2.917 FNO 2.80 2.80 2.78 f2/f3 5.02 6.507.80 d3/d5 1.02 1.80 1.03

It can be appreciated by one having ordinary skill in the art that thedescription above is only embodiments of the present disclosure. Inpractice, one having ordinary skill in the art can make variousmodifications to these embodiments in forms and details withoutdeparting from the spirit and scope of the present disclosure.

What is claimed is:
 1. A camera optical lens, comprising, from an objectside to an image side: a first lens having a positive refractive power;a second lens having a positive refractive power; a third lens having apositive refractive power; a fourth lens; a fifth lens; and a sixthlens, wherein the camera optical lens satisfies following conditions:5.00≤f2/f3≤8.00; and 1.00≤d3/d5≤5.00, where f2 denotes a focal length ofthe second lens; f3 denotes a focal length of the third lens; d3 denotesan on-axis thickness of the second lens; and d5 denotes an on-axisthickness of the third lens.
 2. The camera optical lens as described inclaim 1, further satisfying a following condition: 1.01≤d3/d5≤3.40. 3.The camera optical lens as described in claim 1, wherein the first lenscomprises an object side surface being convex in a paraxial region andan image side surface being concave in the paraxial region, and thecamera optical lens further satisfies following conditions:0.44≤f1/f≤1.38; −2.87≤(R1+R2)/(R1−R2)≤−0.69; and 0.05≤d1/TTL≤0.17, wheref denotes a focal length of the camera optical lens; f1 denotes a focallength of the first lens; R1 denotes a curvature radius of the objectside surface of the first lens; R2 denotes a curvature radius of theimage side surface of the first lens; d1 denotes an on-axis thickness ofthe first lens; and TTL denotes a total optical length from the objectside surface of the first lens to an image plane of the camera opticallens along an optic axis.
 4. The camera optical lens as described inclaim 3, further satisfying following conditions: 0.70≤f1/f≤1.10;−1.80≤(R1+R2)/(R1−R2)≤−0.86; and 0.08≤d1/TTL≤0.13.
 5. The camera opticallens as described in claim 1, wherein the second lens comprises anobject side surface being concave in a paraxial region and an image sidesurface being convex in the paraxial region, and the camera optical lensfurther satisfies following conditions: 2.27≤f2/f≤10.18;0.67≤(R3+R4)/(R3−R4)≤3.53; and 0.04≤d3/TTL≤0.18, where f denotes a focallength of the camera optical lens; R3 denotes a curvature radius of theobject side surface of the second lens; R4 denotes a curvature radius ofthe image side surface of the second lens; and TTL denotes a totaloptical length from an object side surface of the first lens to an imageplane of the camera optical lens along an optic axis.
 6. The cameraoptical lens as described in claim 5, further satisfying followingconditions: 3.62≤f2/f≤8.14; 1.07≤(R3+R4)/(R3−R4)≤2.82; and0.07≤d3/TTL≤0.15.
 7. The camera optical lens as described in claim 1,wherein the third lens comprises an object side surface being concave ina paraxial region and an image side surface being convex in the paraxialregion, and the camera optical lens further satisfies followingconditions: 0.43≤f3/f≤1.52; 1.27≤(R5+R6)/(R5−R6)≤4.41; and0.03≤d5/TTL≤0.12, where f denotes a focal length of the camera opticallens; R5 denotes a curvature radius of the object side surface of thethird lens; R6 denotes a curvature radius of the image side surface ofthe third lens; and TTL denotes a total optical length from an objectside surface of the first lens to an image plane of the camera opticallens along an optic axis.
 8. The camera optical lens as described inclaim 7, further satisfying following conditions: 0.70≤f3/f≤1.21;2.04≤(R5+R6)/(R5−R6)≤3.53; and 0.05≤d5/TTL≤0.10.
 9. The camera opticallens as described in claim 1, wherein the fourth lens has a negativerefractive power, and comprises an object side surface being concave ina paraxial region and an image side surface being concave in theparaxial region, and the camera optical lens further satisfies followingconditions: −1.12≤f4/f≤−0.35; −1.69≤(R7+R8)/(R7−R8)≤−0.54; and0.03≤d7/TTL≤0.11, where f denotes a focal length of the camera opticallens; f4 denotes a focal length of the fourth lens; R7 denotes acurvature radius of the object side surface of the fourth lens; R8denotes a curvature radius of the image side surface of the fourth lens;d7 denotes an on-axis thickness of the fourth lens; and TTL denotes atotal optical length from an object side surface of the first lens to animage plane of the camera optical lens along an optic axis.
 10. Thecamera optical lens as described in claim 9, further satisfyingfollowing conditions: −0.70≤f4/f≤−0.44; −1.06≤(R7+R8)/(R7−R8)≤−0.67; and0.05≤d7/TTL≤0.09.
 11. The camera optical lens as described in claim 1,wherein the fifth lens has a positive refractive power, and comprises anobject side surface being convex in a paraxial region and an image sidesurface being convex in the paraxial region, and the camera optical lensfurther satisfies following conditions: 0.43≤f5/f≤1.37;0.13≤(R9+R10)/(R9−R10)≤0.51; and 0.08≤d9/TTL≤0.26, where f denotes afocal length of the camera optical lens; f5 denotes a focal length ofthe fifth lens; R9 denotes a curvature radius of the object side surfaceof the fifth lens; R10 denotes a curvature radius of the image sidesurface of the fifth lens; d9 denotes an on-axis thickness of the fifthlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 12. The camera optical lens as described in claim 11,further satisfying following conditions: 0.68≤f5/f≤1.10;0.20≤(R9+R10)/(R9−R10)≤0.41; and 0.13≤d9/TTL≤0.20.
 13. The cameraoptical lens as described in claim 1, wherein the sixth lens has anegative refractive power, and comprises an object side surface beingconvex in a paraxial region and an image side surface being concave inthe paraxial region, and the camera optical lens further satisfiesfollowing conditions: −1.57≤f6/f≤−0.48; 0.61≤(R11+R12)/(R11−R12)≤1.96;and 0.06≤d11/TTL≤0.20, where f denotes a focal length of the cameraoptical lens; f6 denotes a focal length of the sixth lens; R11 denotes acurvature radius of the object side surface of the sixth lens; R12denotes a curvature radius of the image side surface of the sixth lens;d11 denotes an on-axis thickness of the sixth lens; and TTL denotes atotal optical length from an object side surface of the first lens to animage plane of the camera optical lens along an optic axis.
 14. Thecamera optical lens as described in claim 13, further satisfyingfollowing conditions: −0.98≤f6/f≤−0.60; 0.97≤(R11+R12)/(R11−R12)≤1.57;and 0.10≤d11/TTL≤0.16.
 15. The camera optical lens as described in claim1, further satisfying a following condition: 0.40≤f12/f≤1.23, where fdenotes a focal length of the camera optical lens; and f12 denotes acombined focal length of the first lens and the second lens.
 16. Thecamera optical lens as described in claim 15, further satisfying afollowing condition: 0.64≤f12/f≤0.99.
 17. The camera optical lens asdescribed in claim 1, wherein a total optical length TTL from an objectside surface of the first lens to an image plane of the camera opticallens along an optic axis is smaller than or equal to 4.91 mm.
 18. Thecamera optical lens as described in claim 17, wherein the total opticallength TTL of the camera optical lens is smaller than or equal to 4.69mm.
 19. The camera optical lens as described in claim 1, wherein an Fnumber of the camera optical lens is smaller than or equal to 2.89. 20.The camera optical lens as described in claim 19, wherein the F numberof the camera optical lens is smaller than or equal to 2.83.